以 about the Internet为题的作文
题目
以 about the Internet为题的作文
答案
The InternetThe Intemet was first established in 1960s.At that time,the computer was both large and expensive and the networks were unable to work well.If one of the computers broke down,the whole net...
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已知函数f(x)=x,g(x)=alnx,a∈R.若曲线y=f(x)与曲线y=g(x)相交,且在交点处有相同的切线,求a的值和该切线方程.
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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